Light harvesting complexes of Chromera velia, photosynthetic relative of apicomplexan parasites
Language English Country Netherlands Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
23428396
DOI
10.1016/j.bbabio.2013.02.002
PII: S0005-2728(13)00028-5
Knihovny.cz E-resources
- MeSH
- Alveolata metabolism MeSH
- Circular Dichroism MeSH
- Photosynthesis * MeSH
- Photosystem I Protein Complex physiology MeSH
- Chlorophyll Binding Proteins physiology MeSH
- Light-Harvesting Protein Complexes physiology MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Photosystem I Protein Complex MeSH
- Chlorophyll Binding Proteins MeSH
- Light-Harvesting Protein Complexes MeSH
The structure and composition of the light harvesting complexes from the unicellular alga Chromera velia were studied by means of optical spectroscopy, biochemical and electron microscopy methods. Two different types of antennae systems were identified. One exhibited a molecular weight (18-19kDa) similar to FCP (fucoxanthin chlorophyll protein) complexes from diatoms, however, single particle analysis and circular dichroism spectroscopy indicated similarity of this structure to the recently characterized XLH antenna of xanthophytes. In light of these data we denote this antenna complex CLH, for "Chromera Light Harvesting" complex. The other system was identified as the photosystem I with bound Light Harvesting Complexes (PSI-LHCr) related to the red algae LHCI antennae. The result of this study is the finding that C. velia, when grown in natural light conditions, possesses light harvesting antennae typically found in two different, evolutionary distant, groups of photosynthetic organisms.
References provided by Crossref.org
Eustigmatophyte model of red-shifted chlorophyll a absorption in light-harvesting complexes
Size and Fluorescence Properties of Algal Photosynthetic Antenna Proteins Estimated by Microscopy
Antenna proton sensitivity determines photosynthetic light harvesting strategy
High light acclimation of Chromera velia points to photoprotective NPQ
Architecture of the light-harvesting apparatus of the eustigmatophyte alga Nannochloropsis oceanica
Supramolecular organization of fucoxanthin-chlorophyll proteins in centric and pennate diatoms
